Nesting Effects
You can use the Avid editing application to place effect tracks inside one another to better combine multiple images and digital video effects (DVEs). This involves a process known as nesting, which allows you to use the Timeline to step into a track, perform a series of editing operations, and then step out to view and render the effect as one segment on the track.
You can edit up to 24 video track layers, depending on your Avid editing application. Into each layer of video, you can nest (stack inside) up to four additional video tracks. You can also step into each video track indefinitely, constrained only by your system's memory.
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Nested effects must be rendered in order to play back correctly.
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You can use nesting when you want to create layered effects. In this case, the nested layers are treated as one element during the transition. Since transition effects, such as dissolves, fades, and wipes, are not multilayered, nesting is not applicable to these types of effects; nor are nesting effects applicable to audio tracks.
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Some effects do not work well with each other when nesting. For example,
the Box Wipe effect and Edge Wipe effect cannot be used together in a
nested segment because the two effects are competing to establish the
shape of the wipe.
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Another use of nesting is to constrain one effect using another effect. For example, you can use the Circle Wipe effect to constrain an image posterization inside a region.
The following topics provide detailed information on working with nested effects:
